A master thief stole a golden chalice from a vault. The security system recorded the thief entering at 10:00 PM and leaving at 10:05 PM. The vault door was locked with a timer that could only be opened from the outside at midnight. How did the thief escape before midnight?
The thief was already inside before 10:00 PM.
The thief didn't need to open the vault to leave if they hid inside the vault room before it locked, or walked out when it was manually opened for maintenance.
About this riddle
Detective riddles are tiny mysteries. Look for the detail in the story that does not fit; it is usually the clue that solves the case.
Difficulty: Medium. More like this: Detective riddles with answers or try Truth & Lie Island for a different kind of puzzle.
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